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A046702 as a simple table

na(n)
11
21
31
43
53
63
75
85
97
105
117
127
139
149
159
1611
1711
1813
1911
2015
2113
2217
2313
2417
2515
2619
2717
2819
2917
3021
3119
3223
3319
3423
3521
3625
3723
3825
3925
4027
4127
4227
4329
4429
4531
4629
4733
4831
4935
5031
5137
5233
5339
5433
5541
5635
5743
5835
5943
6037
6145
6239
6345
6439
6547
6641
6749
6841
6949
7043
7151
7245
7351
7445

[1,1,1,3,3,3,5,5,7,5,7,7,9,9,9,11,11,13,11,15,13,
 17,13,17,15,19,17,19,17,21,19,23,19,23,21,25,23,
 25,25,27,27,27,29,29,31,29,33,31,35,31,37,33,39,
 33,41,35,43,35,43,37,45,39,45,39,47,41,49,41,49,
 43,51,45,51,45]